Stevens L M, Johnson M A, Thompson G K. "一种的合成方法" [P]. US Patent, US 10891073 B2, 2017-10-25.
发明人高志强,郭海燕,钱学锋. "Method for the Synthesis of Methyl 7-amino-2-ethylthieno[2,3-b]pyrazine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 114257962 B, 授权公告日 2025-01-10.
Lefèvre J P, Kowalski A, Schröder R. "A Process for Preparing High-Purity Methyl 7-amino-2-ethylthieno[2,3-b]pyrazine-6-carboxylate" [P]. European Patent, EP 3446855 A1, 2016-08-28.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2010, 1575, (2), 7018-7024.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2024, 769, (4), 3572-3595.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 7-amino-2-ethylthieno[2,3-b]pyrazine-6-carboxylate Using HRMS and NMR". Phytochemistry, 2013, 2052, 5230-5236.